Reference: ad-Durr ath-Thameen fee Tarjamati Faqeehil-Ummah al-’Allaamah ibn ‘Uthaymeen – Page 225.
Shaykh ‘Aqeel ibn ‘Abdil-’Azeez al-’Aqeel narrates :
‘The Shaykh invited me [to join him] for lunch and there was only one type of food on the floor spread (table spread on the floor). After finishing lunch, he gave me a bag with a large amount of money in it, which was collected in the masjid for charitable purposes. When I left [the Shaykh’s house] the Shaykh quickly followed me before I got into the car, calling me. I said: “What is it, O Shaykh?” He said:
“Be careful, there is a half a riyal [coin] in the bag.”
So I said: “Certainly, O Shaykh [I’ll be careful].”
So when the bag was opened we counted the money and found the half a riyal [coin]. Such was the importance the Shaykh placed upon other people’s money and donations; out of fear we may forget that half a riyal.’
 Equivalent to 10 pence (UK sterling)