Musnad Ahmad Hadith 13012

It is narrated from Anas (may Allah be pleased with him) that once during the month of Ramadan, the Prophet (ﷺ) was leading the prayer. I came and stood behind him, then another man came and stood with me, and in this way, a congregation was formed. When the Prophet (ﷺ) sensed my presence behind him, he shortened the prayer and went to his house, and there he offered such a prayer as he had not offered in front of us. In the morning, we submitted, "O Messenger of Allah (ﷺ)! Did you realize our presence last night?" The Prophet (ﷺ) said, "Yes, and that is why I did so." Then, at the end of the month, the Prophet (ﷺ) observed continuous fasting (Saum Wisal). Some people did the same. When the Prophet (ﷺ) was informed, he said, "What is wrong with the people that they are observing Wisal? If this month had been prolonged, I would have fasted continuously for so many days that those who go to extremes in religion would have abandoned their extremism. I am not like you; (my Lord feeds me and gives me drink)."