Musannaf Ibn Abi Shayba 3:5568

Hashim and Ibn ‘Ulayyah narrated to us, from ‘Awn, from Ibrahim, who said: They mentioned in his presence a man who finds urine. Hashim said: And he finds a sensation (flatulence). Does he perform ablution? He said: If [he does that], by Allah, he will never cease performing ablution.