Hadith 31-23

وَبِهذَا الإِسنادِ قالَ: قالَ رَسُولُ اللَّهِ‏ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: العِلْمٌ خَزَائِنُ وَمَفاتِيحُهُ السُّؤالُ فَاسأَلُوا - يَرحَمُكُمُ اللَّهُ - فَإِنَّهُ يؤجَرُ فِيهِ أَرْبَعَةٌ: السَّائِلُ وَالمُعَلِّمُ وَالمُستَمِعُ وَالُمجيِبُ لَهُ.

According to the same documentation, God’s Prophet (S) said, “Knowledge is like a treasure whose keys are questioning. Therefore ask questions - may God have Mercy upon you - as four groups will benefit from this: the ones who ask, the one who teaches, the one who hears, and the one who responds to the question being asked.”