Aslam

Praise be to Allah.

Taha and Yaseen are not names of the Prophet (blessings and

peace of Allah be upon him); rather they are among the separate letters that

appear at the beginning of some soorahs of the Holy Qur’aan, which point to

the miraculous nature of the Qur’aan and the fact that these letters are

part of the language of the Arabs, yet despite that they were unable to

produce anything like it, which indicates that it was revealed from Allah,

may He be exalted.

Muhammad al-Ameen ash-Shanqeeti (may Allah have mercy on him)

said in Adwa’ al-Bayaan

(4/3), commenting on Soorah Ta-Ha:

The most correct opinion concerning it in my view is that

these are the separate letters that appear at the beginning of some soorahs.

What may prove that is the fact that the ta’ and ha’ that appear at the

beginning of this soorah also appear in other places in which there is no

dispute that they are among these separate letters. The letter ta’ appears

at the beginning of ash-Shu‘ara’ (Soorah 26), “Ta Seen Meem”; and at the

beginning of an-Naml (Soorah 27), Ta’ Seen, and at the beginning of as-Qasas

(soorah 28). As for the letter ha’, it appears at the beginning of Soorat

Maryam where Allah, may He be exalted, says “Kaaf Ha’ Yaa ‘Ayn Saad.” End

quote.

Shaykh as-Sa‘di (may Allah have mercy on him) said in his

Tafseer (1/501): “Ta-Ha” is one of the separate letters with which many

soorahs begin, and it is not one of the names of the Prophet (blessings and

peace of Allah be upon him). End quote.

Shaykh Ibn Baaz (may Allah have mercy on him) said: Taha and

Yaseen are not names of the Prophet (blessings and peace of Allah be upon

him) according to the more correct of the two scholarly opinions; rather

these are some of the separate letters that appear at the beginning of some

soorahs, such as saad, qaaf, noon and so on.

End quote from Majmoo‘ al-Fataawa, 18/54

And Allah knows best.