Ibn Jurayj (may Allah have mercy on him) said: I asked Ata (may Allah have mercy on him) about the testicles. He said: For the two of them there are 50 and 50 camels (50 for each). Masruq, Urwah, Hasan, al-Nakha'i and al-Zuhri (may Allah have mercy on them) say that the two are equal.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16324