Baṣāʾir ad-Darajāt fī ʿUlūm ʾĀl Muḥammad wa-mā khaṣṣahum Allāh bihi (Arabic: بَصَائِر ٱلدَّرَجَات فِي عُلُوم آل مُحَمَّد وَمَا خَصَّهُم ٱلله بِهِ), alternatively known as Baṣāʾir ad-Darajāt al-Kubrā fī Faḍāʾil ʾĀl Muḥammad (Arabic: بَصَائِر ٱلدَّرَجَات ٱلْكُبْرَىٰ فِي فَضَائِل آل مُحَمَّد), is a Hadith compilation considered to be one of the oldest books in Hadith among Shias.

His greatest work, which is also the only one that has survived, is Baṣāʾir ad-Darajāt fi ʿUlūm ʾĀle Muḥammad wa-mā khaṣṣahumu--Allāh.

It was edited in Iran under the title Baṣaʾir ad-Darajāt al-Kubrā fī Faḍāʾil ʾĀle Muḥammad.

Shaikh as-Saffar al-Qummi begins his book with the famous Hadith "The search for science is a religious duty for every Muslim.

Mohaddis-e- Noori at the end of Mustadrakul Wasail says: “Saffar is a respected and reliable narrators of Ahadith and his book Basa'ir ad-Darajat is well authenticated”.