Sayyiduna Ibn Umar (may Allah be pleased with them both) said to a man: As for your question that you asked me, whether Uthman (may Allah be pleased with him) was present at Badr: he was occupied with nursing the daughter of the Messenger of Allah (peace and blessings be upon him), and the Messenger of Allah (peace and blessings be upon him) allotted him his share as well.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الفيء والغنيمة / 12716