حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا جَرِيرٌ، عَنْ مُوسَى بْنِ أَبِي عَائِشَةَ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ فِي قَوْلِهِ ‏[quran sura="75" aya_start="16" aya_end="16"]{‏لاَ تُحَرِّكْ بِهِ لِسَانَكَ لِتَعْجَلَ بِهِ‏}‏ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا نَزَلَ جِبْرِيلُ بِالْوَحْىِ وَكَانَ مِمَّا يُحَرِّكُ بِهِ لِسَانَهُ وَشَفَتَيْهِ فَيَشْتَدُّ عَلَيْهِ وَكَانَ يُعْرَفُ مِنْهُ، فَأَنْزَلَ اللَّهُ الآيَةَ الَّتِي فِي ‏[quran sura="75" aya_start="1" aya_end="1"]{‏لاَ أُقْسِمُ بِيَوْمِ الْقِيَامَةِ‏}‏ ‏[quran sura="75" aya_start="16" aya_end="18"]{‏لاَ تُحَرِّكْ بِهِ لِسَانَكَ لِتَعْجَلَ بِهِ * إِنَّ عَلَيْنَا جَمْعَهُ وَقُرْآنَهُ * فَإِذَا قَرَأْنَاهُ فَاتَّبِعْ قُرْآنَهُ‏}‏ فَإِذَا أَنْزَلْنَاهُ فَاسْتَمِعْ ‏[quran sura="75" aya_start="19" aya_end="19"]{‏ثُمَّ إِنَّ عَلَيْنَا بَيَانَهُ‏}‏ قَالَ إِنَّ عَلَيْنَا أَنْ نُبَيِّنَهُ بِلِسَانِكَ‏.‏ قَالَ وَكَانَ إِذَا أَتَاهُ جِبْرِيلُ أَطْرَقَ، فَإِذَا ذَهَبَ قَرَأَهُ كَمَا وَعَدَهُ اللَّهُ‏.‏

باب التَّرْتِيلِ فِي الْقِرَاءَةِ

Narrated Ibn `Abbas:

Regarding His (Allah's) Statement:-- 'Move not your tongue concerning (the Qur'an) to make haste 
therewith.' (75.16) And whenever Gabriel descended to Allah's Messenger (ﷺ) with the Divine Inspiration, 
Allah's Messenger (ﷺ) used to move his tongue and lips, and that used to be hard for him, and one could 
easily recognize that he was being inspired Divinely. So Allah revealed the Verse which occurs in the 
Surah starting with "I do swear by the Day of Resurrection.' (75.1) i.e. 'Move not your tongue 
concerning (the Qur'an) to make haste then with. It is for Us to collect it (in your mind) (O 
Muhammad) an give you the ability to recite it 'by heart.' (75.16-17) which means: It is for us to 
collect it (in your mind) and give you the ability to recite it by heart. And when We have recited it to 
you (O Muhammad) through Gabriel then follow you its recital. (75.18) means: 'When We reveal it 
(the Qur'an) to you, Listen to it.' for then: It is for Us to explain it and make it clear to you' (75.19) 
i.e. It is up to Us to explain it through your tongue. So, when Gabriel came to him, Allah's Messenger (ﷺ) 
would listen to him attentively, and as soon as Gabriel left, he would recite the Revelations, as Allah 
had promised him.

The recitation of Qur'an in Tartil

Sahih al-Bukhari

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا جَرِيرٌ، عَنْ مُوسَى بْنِ أَبِي عَائِشَةَ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، فِي قَوْلِهِ ‏[quran sura="75" aya_start="16" aya_end="16"]{‏لاَ تُحَرِّكْ بِهِ لِسَانَكَ لِتَعْجَلَ بِهِ‏}‏ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا نَزَلَ جِبْرِيلُ بِالْوَحْىِ، وَكَانَ مِمَّا يُحَرِّكُ بِهِ لِسَانَهُ وَشَفَتَيْهِ فَيَشْتَدُّ عَلَيْهِ وَكَانَ يُعْرَفُ مِنْهُ، فَأَنْزَلَ اللَّهُ الآيَةَ الَّتِي فِي ‏[quran sura="75" aya_start="1" aya_end="1"]{‏لاَ أُقْسِمُ بِيَوْمِ الْقِيَامَةِ‏}‏ ‏[quran sura="75" aya_start="16" aya_end="17"]{‏لاَ تُحَرِّكْ بِهِ لِسَانَكَ لِتَعْجَلَ بِهِ * إِنَّ عَلَيْنَا جَمْعَهُ وَقُرْآنَهُ‏}‏ قَالَ عَلَيْنَا أَنْ نَجْمَعَهُ فِي صَدْرِكَ، وَقُرْآنَهُ ‏[quran sura="75" aya_start="18" aya_end="18"]{‏فَإِذَا قَرَأْنَاهُ فَاتَّبِعْ قُرْآنَهُ‏}‏ فَإِذَا أَنْزَلْنَاهُ فَاسْتَمِعْ ‏[quran sura="75" aya_start="19" aya_end="19"]{‏ثُمَّ إِنَّ عَلَيْنَا بَيَانَهُ‏}‏ عَلَيْنَا أَنْ نُبَيِّنَهُ بِلِسَانِكَ ـ قَالَ ـ فَكَانَ إِذَا أَتَاهُ جِبْرِيلُ أَطْرَقَ، فَإِذَا ذَهَبَ قَرَأَهُ كَمَا وَعَدَهُ اللَّهُ‏.‏ ‏[quran sura="75" aya_start="34" aya_end="34"]{‏أَوْلَى لَكَ فَأَوْلَى‏}‏ تَوَعُّدٌ‏.‏

باب قَوْلِهِ ‏<a href="https://quran.com/75/18-18">{‏فَإِذَا قَرَأْنَاهُ فَاتَّبِعْ قُرْآنَهُ‏}</a>‏

Narrated Ibn `Abbas:

(as regards) Allah's Statement: 
"Move not your tongue concerning (the Qur'an) to make haste therewith." (75.16) 
When Gabriel revealed the Divine Inspiration in Allah's Messenger (ﷺ) , he (Allah's Messenger) moved his 
tongue and lips, and that state used to be very hard for him, and that movement indicated that 
revelation was taking place. So Allah revealed in Surat Al-Qiyama which begins: 
'I do swear by the Day of Resurrection...' (75) the Verses:-- 
'Move not your tongue concerning (the Qur'an) to make haste therewith. It is for Us to collect it 
(Qur'an) in your mind, and give you the ability to recite it by heart. (75.16-17) Ibn `Abbas added: It is 
for Us to collect it (Qur'an) (in your mind), and give you the ability to recite it by heart means, "When 
We reveal it, listen. Then it is for Us to explain it," means, 'It is for us to explain it through your 
tongue.' So whenever Gabriel came to Allah's Messenger (ﷺ) ' he would keep quiet (and listen), and when the 
Angel left, the Prophet (ﷺ) would recite that revelation as Allah promised him.