سَعدُ بِن زَيدٍ كَثيرٌ إِن عَدَدتُهُم

وَرَأَسُ سَعدِ بنِ زَيدٍ آلُ شَمّاسِ

Saad, son of Zaid, are many if I count them

And the chief of Saad, son of Zaid, are the clan of Shammas