Abdullah bin lahya'a bin 'Uqba عبد الله بن لهيعة بن عقبة الحضرمي · Chapters on Knowledge

that the Prophet (ﷺ) said: "Whoever learns knowledge for other than (the sake of) Allah, or intends by it other than Allah, then let him take his seat in the Fire."

that the Messenger of Allah (ﷺ) said: "Lo! Soon a Hadith from me will be conveyed to a man, while he is reclining on his couch, and he says: 'Between us and you is Allah's Book. So whatever we find in it that is lawful, we consider lawful, and whatever we find in it that is unlawful, we consider it unlawful.' Indeed whatever the Messenger of Allah (ﷺ) made unlawful, it is the same as what Allah made unlawful."