(Imām Bukhārī narrates): Sulaiman bin Harb narrated to us, he said: Shu'bah narrated to us, from Al-Hakam, from Ibn Abdur Rahman bin Abza, from his father, that

he was present with Hazrat Umar (may Allāh be pleased with him), and Hazrat Ammar (may Allāh be pleased with him) said to him that we were both on a military expedition, and both of us became in janabah, and he blew (into his hands), in which there were traces of saliva.