Clarification of the Transmission Chain to Bakkar Ibn Kurdum

And whatever is narrated from Bakkar ibn Kurdum, I have narrated it from Muhammad ibn Al-Hasan - may Allah سبحانه وتعالى have mercy on him - from Muhammad ibn Al-Hasan Al-Ṣaffar, from Ahmad ibn Muhammad ibn ʿIsa, from Muhammad ibn Sinan, from Bakkar ibn Kurdum.