Ibn Abbas on ‘Ilm: Learn from many sources, blindly follow no one

Sa’id ibn al-Musayyib reported: Ibn Abbas, may Allah be pleased with him, said, “Take knowledge wherever you find it and do not uncritically accept the opinion jurists have of one another. Indeed, they differ with each other like goats in a pen.”

Source: Jāmi’ Bayān al-‘Ilm 1308

عَنْ سَعِيدِ بْنِ الْمُسَيِّبِ عَنِ ابْنِ عَبَّاسٍ رضي الله عنه قَالَ خُذُوا الْعِلْمَ حَيْثُ وَجَدْتُمْ وَلا تَقْبَلُوا قَوْلَ الْفُقَهَاءِ بَعْضِهِمْ فِي بَعْضٍ فَإِنَّهُمْ يَتَغَايَرُونَ تَغَايُرَ التِّيُوسِ فِي الزَّرِيبَةِ

1308 جامع بيان العلم وفضله لابن عبد البر باب حكم قول العلماء بعضهم في بعض