It is narrated from Sayyiduna Zayd bin Thabit (may Allah be pleased with him) that on the day of Hunayn the Prophet (peace and blessings be upon him) gave al-Zubayr (may Allah be pleased with him) four shares: two shares for the horse, one share for him, and one share for kinship.
This is among the gharib (odd) narrations of al-Zanbari from Malik; it is known only through the first chain.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الفيء والغنيمة / 12877