Musannaf Ibn Abi Shaybah 31647 — Raising the voice in supplication

Abdullah bin Nusayb said: "I prayed beside Sa'id bin al-Musayyib. When I sat in the second rak'ah, my voice became loud while supplicating, and he rebuked me sharply. When I had finished the prayer, I asked him: 'What did you dislike in me?' He said: 'What do you suppose? Is Allah not near you?'"