Qasim ibn Muhammad

Qasim ibn Muhammad (Arabic: قاسم بن محمد), was the son of Muhammad and Khadija bint Khuwaylid. He died in 601 CE (before the start of his father's prophethood in 609), after his third birthday^[1] and is buried in Jannat al-Mu'alla cemetery, Mecca, Saudi Arabia. He was Muhammad's first child. That is why Prophet Muhammad's nickname or Kunia was A'bul Qasim. Qasim was born before the Prophethood and died in Makkah as a child.

Qasim ibn Muhammad
القاسم بن محمد
Born	Qasim ibn Muhammad January 598 CE Mecca, Hejaz, Arabia
Died	601 CE (aged 3) Mecca, Hejaz, Arabia
Resting place	Jannat al-Mu'alla cemetery, Mecca, Arabia, (now-Mecca, Saudi Arabia)
Parents	Muhammad (father) Khadija bint Khuwaylid (mother)
Relatives	Zainab (full-sister) Ruqayyah (full sister) Umm Kulthum (full sister) Abdullah (full brother) Fatimah (full-sister) Ibrahim (paternal half-brother)
Family	House of Muhammad

Reference

1. Barboza, Gileno. "Qasim ibn Muhammad". Geneanet. Retrieved 28 February 2020.