Hadith 8:1953
Abu Bakr narrated to us, he said: Ibn Numayr narrated to us, from Ubayd Allah, from Nafi’, who said: Ibn Umar used to send his young boys on the night of Muzdalifah, so they would pray the morning prayer in Mina and stone the Jamrah before the people arrived.
حدثنا أبو بكر قال حدثنا بن نمير عن عبيد الله بن عبد الله قال كان بن عمر يبعث بصبيانه ليلة المزدلفة فيصلون الصبح بمنى ويرمون الجمرة قبل أن يأتي الناس