وعن مسروق
قال: دخلنا على عبدالله بن مسعود رضي الله عنه فقال: يا أيها الناس من علم شيئا فليقل به، ومن لم يعلم، فليقل: الله أعلم، فإن من العلم أن يقول الرجل لما لا يعلم: الله أعلم. قال الله تعالى لنبيه صلى الله عليه وسلم: «قل ما أسألكم عليه من أجر وما أنا من المتكلفين»
We visited Abdullah ibn Masud (radiyallahu anhu) and he said to us: O people! He who has the knowledge of any matter may convey it to the others. And he who has no knowledge, thereof, should say: “Allahu alam (Allah knows better).” It is a part and parcel of knowledge that a man who has no knowledge of a matter should say: “Allah knows better.”
Allah said to His Prophet (sallallahu alayhi wa sallam): “Say (O Muhammad (sallallahu alayhi wa sallam)): ‘No wage do I ask of you for this (the Qur’an), nor am I one of the Mutakallifun (those who pretend and fabricate things which do not exist).’” (Sad 38:86).