Ayub, Yusuf, Musa, and Harun. Thus do We reward the good-doers. And Zakariyya, and Yahya and Isa and Ilyas, each one of them was of the righteous. And Ismail and Al-Yasa`, and Yunus and Lut, and each one of them We preferred above the Alamin (mankind and Jinns, of their times).
Mentioning `Isa in the offspring of Ibrahim, or Nuh as we stated above, is proof that the grandchildren from a man's daughter's side are included among his offspring. `Isa is included among Ibrahim's progeny through his mother, although `Isa did not have a father.
Ibn Abi Hatim recorded that;
Abu Harb bin Abi Al-Aswad said,
"Al-Hajjaj sent to Yahya bin Ya`mar, saying, `I was told that you claim that Al-Hasan and Al-Hussein are from the offspring of the Prophet, did you find it in the Book of Allah I read the Qur'an from beginning to end and did not find it.'
Yahya said, `Do you not read in Surah Al-An`am,
وَمِن ذُرِّيَّتِهِ دَاوُودَ وَسُلَيْمَانَ
(and among his progeny Dawud, Sulayman...) until,
وَيَحْيَى وَعِيسَى
(and Yahya and `Isa...).
Al-Hajjaj said, `Yes.'
Yahya said, `Is not `Isa from the offspring of Ibrahim, although he did not have a father!'
Al-Hajjaj said, `You have said the truth."'
For example, when a man leaves behind a legacy, a trust, or gift to his "offspring" then the children of his daughters are included. But if a man gives something to his "sons", or he leaves a trust behind for them, then that would be particular to his male children and their male children.
Allah's statement