I say: al-Ṭabarānī’s shaykh, ʿAlī ibn ʿAbd al-ʿAzīz, was not among them, but he was a trustworthy hadith master; he was al-Baghawī. This documentation indicates that the sounder view concerning the chain of transmission of the hadith is that it is attributed to the Companion. Yet it is evident that it carries the ruling of a report attributed to the Prophet, since such a statement is not based on personal opinion—especially as its opening portion has also been narrated through another route from Murrah al-Hamadhānī as attributed to the Prophet. It has been cited in Ghāyat al-Marām (19), and was also narrated by al-Dūlābī in al-Kunā (1/141) and by al-Baghawī in Sharḥ al-Sunnah (8/10).
Its latter portion has a supporting narration transmitted by al-Qāsim from Abū Umāmah, as attributed to the Prophet, with similar wording. Al-Ṭabarānī narrated it in al-Muʿjam al-Kabīr (7795, 7800, and 7877), and Ibn Shāhīn in al-Targhīb (284/2), through three routes from him. He is al-Qāsim ibn ʿAbd al-Raḥmān Abū ʿAbd al-Raḥmān, a companion of Abū Umāmah, and his hadith are good.
It has a second supporting narration: Abū Yaḥyā narrated it from Mujāhid, from Ibn ʿAbbās, as attributed to the Prophet, with the wording: “So let him frequently remember Allah.” Ibn Shāhīn also narrated it. Abū Yaḥyā was al-Qattāt, who is mildly weak in hadith; thus, he is suitable as corroborative evidence.
A third supporting narration is transmitted by Yūsuf ibn al-ʿAnbas al-Yamanī: ʿIkrimah ibn ʿAmmār narrated to us from Yaḥyā ibn Abī Kathīr, from Abū Salamah, from Abū Hurayrah, as attributed to the Prophet, with the same wording. He added at its end: “For they are the enduring righteous deeds.” Al-Aṣbahānī narrated it in al-Targhīb (folio 76/2, Islamic University photocopy). I say: I could find no biographical notice for Yūsuf al-Yamanī.