It is narrated from Hazrat Abu Saeed (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: The person who is waiting for prayer on his prayer mat is considered to be in prayer continuously, and the angels supplicate for him: O Allah! Forgive him, O Allah! Have mercy on him, until he returns or he experiences hadath. I asked about the meaning of hadath, so he said: The passing of wind silently or with sound.