(2) Knowledge
كتاب العلم
(1b) Chapter - Section 2
(1b) باب - الفصل الثاني
Mishkat al-Masabih 221 
Sakhbara al-Azdi reported God’s messenger as saying, “If anyone seeks knowledge, it will be an atonement for past sins.” Tirmidhi and Darimi transmitted it, Tirmidhi saying that this is a tradition whose isnad is weak, and that Abu Dawud the transmitter is declared to be weak.
وَعَن سَخْبَرَة الْأَزْدِيّ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مِنْ طَلَبَ الْعِلْمَ كَانَ كَفَّارَةً لِمَا مَضَى» . رَوَاهُ التِّرْمِذِيُّ وَالدَّارِمِيُّ وَقَالَ التِّرْمِذِيُّ: هَذَا حَدِيثٌ ضَعِيفُ الْإِسْنَادِ وَأَبُو دَاوُدَ الرَّاوِي يُضَعَّفُ
 ضَعِيف  (الألباني)حكم :
Reference : Mishkat al-Masabih 221
In-book reference : Book 2, Hadith 23