The Etiquettes of Qiyaam-ul-Layl by Dr Zakir Naik

The Etiquettes of Qiyaam-ul-Layl by Dr Zakir Naik
Once when Muhammad (Sallallahu alaihe wa sallam), in the night when he was passing by, he heard Hazrat Abu Bakr, may Allah be pleased with him, reciting the Qiyaam ul Layl and he could hear his voice and later on he hears the voice of Hazrat Umar, (may Allah be pleased with him), when both of them come to him the next day, he says to Hazrat Abu Bakr, (may Allah be pleased with him) that I could hear your voice, it was soft, it was low.
Abu Bakr, (may Allah be pleased with him), he replies that the person whom I was praying to, he could hear it. Therefore I was praying softly. Then he says to Hazrat Umar, (may Allah be pleased with him), that your voice was loud so he said that I was trying to wake up those people who were sleeping and I was trying to shoo away the devils, the Shayateen. I was trying to drive them off. So then the Prophet says to Hazrat Abu Bakr, (may Allah be pleased with him) that you should increase your voice while offering the Qiyaam ul Layl and he told to Hazrat Umar, (may Allah be pleased with him), that you should lower your voice while offering Qiyaam ul Layl.