Reference: Safahaat Mushiqah min Hayaat al-Imaam Muhammed ibn Saalih al-‘Uthaymeen – Page 71
Shaykh Ahmad al-Qar’aawee narrates:
Often, before the Shaykh entered the masjid, a little girl of 6 years would approach him asking the Shaykh for a riyal. So, the Shaykh, smiling, would say to her:
“Would you like a [brand] new riyal or an old [used] riyal?”
So she would reply: “I would like a new riyal.”
So the Shaykh would give her a new riyal, and then she would ask him on behalf of her sister, and the Shaykh would give her one [riyal] too.