Al-Ṣalt was trustworthy and among Muslim’s transmitters.
Ghassān also has a corroborating transmission through:
- Nuʿaym ibn Ḥuṣayn al-Sadūsī, who said: “My uncle Ziyād narrated it to us,” in abbreviated form.
Al-Bazzār narrated it in his Musnad (2/89/1273), as did al-Ṭabarānī (3560); and in al-Awsaṭ (2012—Majmaʿ al-Baḥrayn), through ʿAbd Allāh ibn Muʿāwiyah al-Jumaḥī, who said: “Nuʿaym ibn Ḥuṣayn al-Sadūsī narrated it to us,” with the same report. Al-Ṭabarānī said:
“No one narrated it from Nuʿaym except ʿAbd Allāh. He is Nuʿaym, son of so-and-so, son of Ḥuṣayn; and his grandfather was Ḥuṣayn al-Sadūsī.”
I say: ʿAbd Allāh ibn Muʿāwiyah was trustworthy, but I could find no biographical notice for his shaykh, Nuʿaym.
- Mūsā ibn Ismāʿīl, who said: “Ghassān ibn al-Agharr narrated it to us,” in abbreviated form.
Al-Bukhārī narrated it in al-Tārīkh (2/1/1), as did al-Ṭabarānī (3558), and Abū Nuʿaym in al-Maʿrifah (1/182/1), through his chain and through the chain of Ismāʿīl ibn ʿAbd Allāh, who said: “Mūsā ibn Ismāʿīl narrated it to us,” with the wording:
“He arrived in Medina with camels and said, ‘O Messenger of Allah, instruct the people of the valley to assist me and deal well with me.’ So he instructed them, and they attended to him and dealt well with him. Then he summoned him, passed his hand over his face, and supplicated for him.”
Mūsā ibn Ismāʿīl is al-Minqārī, a trustworthy and highly precise narrator; thus the chain of transmission is authentic, and praise be to Allah.
Ismāʿīl ibn ʿAbd Allāh is al-Iṣfahānī, known as Sammūyah. He was a trustworthy hadith master. Al-Dhahabī included his biography in al-Siyar, as Abū Nuʿaym had done before him in Akhbār Iṣfahān.