The Messenger of Allah ﷺ said, "Ask Allah for beneficial knowledge, and seek refuge in Allah from knowledge that brings no benefit."
حدثنا علي بن محمد حدثنا وكيع عن أسامة بن زيد عن محمد بن المنكدر
قال رسول الله ﷺ سلوا الله علما نافعا وتعوذوا بالله من علم لا ينفع
[Its isnad is hasan] Ibn Abu Shayba narrated it: 9/122, 10/185, from Waki, with this wording. Busiri graded it sahih, and Haythami graded it hasan in al-Majma: 2/182. It has a corroborating witness. Haythami said (10/182), "Tabarani narrated it in al-Awsat, and its isnad is hasan."