Musannaf Ibn Abi Shayba 1:1229

1229. Ibn ‘Ulayyah narrated to us, from Shu’bah, from Abu Ishaq, regarding a man who sneezes in the lavatory. He said: Abu Maysarah said: "I do not like to mention Allah except in a good place." He said: Mansur said: Ibrahim said: "He should praise Allah."