Ibn Babawayh
Abu Ja'far Muhammad ibn 'Ali ibn Babawayh al-Qummi (Persian: محمد بن علی بن بابَوَیْهِ قمی Arabic: أَبُو جَعْفَر مُحَمَّد ٱبْن عَلِيّ ٱبْن بَابَوَيْه ٱلْقُمِيّ; c. 923–991), commonly referred to as Ibn Babawayh (Persian: ابن بابویه Arabic: ٱبْن بَابَوَيْه) or al-Shaykh al-Saduq (Persian: شیخ صدوق Arabic: ٱلشَّيْخ ٱلصَّدُوق, lit. 'the truthful scholar'), was a Shia Muslim scholar, jurist (faqīh), theologian and hadith collector of Persian descent. He is part of the first generation of fuqaha (jurists) after the Major Occultation in 941, and is known to have extensively traveled between Baghdad, Iran and Transoxiana, where he met with established Shi'i communities and circles.