1 - as for the ḥadīth of Ubayy, it is narrated by ʿAbd Allāh ibn al-Faḍl from ʿAbd Allāh ibn Abī al-Jawzāʾ from him. It was recorded by ʿAbd Allāh ibn Aḥmad in "Ziyādāt al-Musnad" (5/143) and al-Ḍiyāʾ al-Maqdisī in "al-Muntaqá min Masmūʿātihi bi-Marw" (folio 141/2). I said: This isnād is weak. ʿAbd Allāh ibn Abī al-Jawzāʾ is unknown and has been neglected, not translated. Yes, he was mentioned in "al-Kuná" from "al-Taʿjīl," where it says: "ʿAb - Abū al-Jawzāʾ from Ubayy ibn Kaʿb (raḍiya Allāhu ʿanhu), and from him Abū al-Faḍl, unknown. Al-Azdī said: abandoned. Al-Ḥusaynī in "al-Ikmāl" said: perhaps he is ʿAbd Allāh ibn al-Faḍl. I said: This conjecture is plausible, and his ḥadīth is about the command to separate the adhān and the iqāmah. It was recorded by ʿAbd Allāh ibn Aḥmad in "Ziyādāt" through the route of Salm ibn Qutaybah al-Bāhilī from Mālik ibn Mughūl from Abū al-Faḍl in this manner, and it was also recorded from the narration of Maʿārik ibn ʿAbbād from ʿAbd Allāh ibn al-Faḍl from ʿAbd Allāh ibn Abī al-Jawzāʾ from Ubayy. ʿAbd Allāh ibn al-Faḍl has a biography in "al-Tahdhīb." If ʿAbd Allāh is nicknamed Abū al-Faḍl, then so be it; otherwise, it is possible that it was "ibn al-Faḍl" and it was misread. I said: The misreading is supported by the fact that in the printed "al-Musnad," it is correctly "ibn al-Faḍl." 2 - as for the ḥadīth of Jābir, it is narrated by ʿAbd al-Munʿim, the owner of the water-skin, who said: Yaḥyá ibn Muslim narrated to us from al-Ḥasan and ʿAṭāʾ from him. It was recorded by al-Tirmidhī (1/373), al-ʿUqaylī in "al-Ḍuʿafāʾ" (266), Ibn ʿAdī in "al-Kāmil," and from him al-Bayhaqī (1/428), and al-Khaṭīb in "Talkhīṣ al-Mutashābih" (26, 27). Al-Tirmidhī said: "We do not know it except from this route, from the ḥadīth of ʿAbd al-Munʿim, and it is an unknown isnād."