At-Táuba 9:80 استغفر لهم او لا تستغفر لهم ان تستغفر لهم سبعين مرة فلن يغفر الله لهم ذالك بانهم كفروا بالله ورسوله والله لا يهدي القوم الفاسقين ٨٠

The Prohibition of asking for Forgiveness for Hypocrites

Allah says to His Prophet that hypocrites are not worthy of seeking forgiveness for them and that if he asks Allah to forgive them seventy times, Allah will not forgive them. The number seventy here was mentioned to close the door on this subje