Sayyiduna Abdullah (may Allah be pleased with him) said: I, Ammar bin Yasir and Sa'd (may Allah be pleased with them) were partners in the share that we would obtain on the day of Badr. Neither I nor Ammar brought anything, while Sa'd brought two men.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشركة / 11428