Ṣadr Ibn al-Murraḥḥil said, “Your associates have disagreed with al-Ḥasan al-Baṣrī over calling the fāsiq (open sinner) ‘one who is ungrateful for the blessing,’ just as they have disagreed with the Khārijites, who declare him a disbeliever in Allah (1).”
Shaykh Taqī al-Dīn replied, “My associates have not opposed al-Ḥasan in this. From which of my colleagues are you reporting such a claim (2)? On the contrary, they consider it permissible to describe the fāsiq as ‘ungrateful for the blessing’ wherever the Sacred Law employs that expression (3).”
Ibn al-Murraḥḥil said, “I assumed that your companions held this view, [ق 40] yet my own companions have in fact diverged from al-Ḥasan on the issue.”
Shaykh Taqī al-Dīn responded, “Neither have your companions differed from him. They interpret the Prophetic hadiths in which the word disbelief is applied to certain acts of sin—such as abandoning the prayer or fighting fellow Muslims—as referring to ingratitude for the blessing. It is therefore clear (4) that they generally label acts of disobedience as ingratitude for the blessing, and accordingly it is clear that they agree with (5) al-Ḥasan rather than oppose him.”
Ibn al-Murraḥḥil then added, “I am merely conveying this from the author. The act of transmission itself is not forbidden, though it does raise difficulties.”