Passion for Learning
Hazrat Ubayy (ra) memorised the Holy Quran after hearing every single word from the Holy Prophet (sa) himself. The Holy Prophet (sa) noticed his passion for learning and as a result paid special attention towards his education. The lofty rank and awe of prophethood would make even the most senior companions to abstain from asking [many] questions; however, Hazrat Ubayy (ra) would ask questions without hesitation. He would not ask questions unnecessarily; he paid due regard to the esteemed rank of prophethood and asked questions in a respectable manner, but he did not hesitate in doing so. Due to Hazrat Ubayy’s (ra) passion, sometimes the Holy Prophet (sa) would initiate the conversation himself without being prompted by a question.
(Sheikh Shah Moinuddin Ahmad Nadvi, Siyar al-Sahabah, Vol. 3 [Karachi, Pakistan: Dar al-Ishaah Urdu Bazar, 2004] 148)