Al-Barqānī narrated from Abū Ḥātim ibn Abī al-Faḍl al-Harawī, who said:
"News reached me that Ṣāliḥ once heard a certain shaykh declare, ‘The letters sīn and ṣād are interchangeable.’ Ṣāliḥ therefore asked some of the shaykh’s pupils about his kunya, and they told him, ‘He is Abū Ṣāliḥ.’
“So I said to the shaykh, ‘O Abā Ṣāliḥ—may Allah set you right—does that make it lawful to recite, “We relate (naqussu) to you the finest of qasas,” placing a sīn where the verse has a ṣād?’
“One of the students said to me, ‘Will you confront the shaykh with this?’ I replied, ‘Then let him not speak untruth; the alternation of sīn and ṣād occurs only in certain contexts.’”

It is also related from Ṣāliḥ ibn Muḥammad that he said, “A cross-eyed person in the household is a blessing; he sees one object as two.”

Bakr ibn Muḥammad al-Ṣayrafī said: I heard Ṣāliḥ say, “ʿAbd Allāh ibn ʿUmar ibn Abān used to test the ḥadīth scholars, and he was extreme in his Shīʿite leanings. He asked me, ‘Who dug the well of Zamzam?’ I answered, ‘Muʿāwiyah.’ He asked, ‘And who carted away its soil?’ I replied, ‘‘Amr ibn al-ʿĀṣ.’ At that he shouted at me and stood up.”

Abū al-Naḍr the jurist said: We were listening to ḥadīth from Ṣāliḥ ibn Muḥammad while he was ill; his private area became exposed, and one of us gestured for him to cover himself. He said, “Did you see it? Then may your eye never be afflicted with ophthalmia.”

Abū Aḥmad ʿAlī ibn Muḥammad said: I heard Ṣāliḥ ibn Muḥammad relate, “Hishām ibn ʿAmmār used to take payment for ḥadīth and would not narrate unless he was paid. I visited him one day, and he said, ‘Abū ʿAlī! Narrate something to me.’ So I said, ‘ʿAlī ibn al-Jaʿd narrated to us; Abū Jaʿfar al-Rāzī narrated from al-Rabīʿ ibn Anas, from Abū al-ʿĀliyah, who said: “Teach free of charge, just as you were taught free of charge.”’ He said, ‘Are you taking a jab at me?’ I replied, ‘No; I am aiming it directly at you.’”

Al-Ḥākim said: I heard Abū al-Naḍr(1) al-Ṭūsī say, “Ṣāliḥ fell ill …”