The Sermon of Hajj

Peace and prayers upon Muhammad and his kinship of Imams and Mahdis. The Almighty said,
56. ﴾Thus We empowered Joseph in the earth, he takes from it whatever he pleases. We reach with Our mercy whom We will and We lose not the reward of the good, and the reward of the Hereafter is better for those who believe and those who are pious.﴿ —Surat Yusuf (Joseph) 12.

Why did Abraham pbuh see only a planet, a moon, and a sun?

he sun is the Messenger of Allah pbuhap, the moon is Imam Ali pbuh [1], and the planet is Imam Al-Mahdi pbuh. [2]
The sun, moon, and planet in the Kingdom of Heaven were the manifestation of Allah in the creation. For this reason, they were made similar to Abraham pbuh and each of these three is a manifestation to its own extent. And Muhammad, Ali and Al-Qaim pbut, specifically, are the complete manifestation of Allah in the creation in this world. This is because not only are they dispatched, but they are dispatchers as well.

Imam Al Mahdi sent his messenger

Imam Al Mahdi Muhammad ibn Alhasan (pbuh) sent his messenger and guardian

My father sent me to the people of the Earth

All praises due to Allah, Lord of the Worlds. On any condition, O people of Iraq, verily my father sent me to the people of the Earth