Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) reports that the Prophet (peace and blessings be upon him) said: "Hold to keeping sheep, for they are among the animals of Paradise. Pray in their pens and wipe their rugham." The narrator says: I asked: "What is meant by rugham?" He replied: "The mucus of the nose."
Al-Tabarani recorded it in al-Mu'jam al-Kabir, as a narration of Subayh from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), and I have not found anyone who has given his biography.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب البيوع / 6259