Reference: ad-Durr ath-Thameen fee Tarjamati Faqeehil-Ummah al-’Allaamah ibn ‘Uthaymeen – Page 236.
Shaykh ‘Abdul-Muhsin al-Qaadhee narrates :
‘Once in one of the study circles, one of the students went to the bathroom and [whilst there] the water pipe burst. So he came to the Shaykh in the middle of his study circle and informed him about it. The Shaykh went to his house, which [at the time] was next door to the masjid and came back with plumbing tools with the students. They [then] gathered [in the bathroom] to repair the pipe and then returned to complete the lesson.’