Musnad Abu Ya'la al-Mawsili 70:2

'Abd al-A'la ibn Hammad narrated to us, Mufaddal ibn Fadala narrated to us, from Ibn Lahi'ah, from Sulayman ibn Ziyad, from 'Abdullah ibn Juz' who said: We ate roasted meat with the Messenger of Allah (may Allah bless him and grant him peace) one day while we were in the mosque. The prayer was called, and we did nothing more than wipe our hands on the pebbles.