Answered by Shaykh Muhammad Qaylish
Is it disliked for a Hanafi to recite the qunut in fajr if most of the followers are Shafi`i?
Allama Ibn Abidin mentioned in his Hashiya in the investigation on reciting the qunut when calamities befall’ that the position of the school is that the one leading others in prayer may recite the qunut when calamities befalls, and the congregation follows him in it. The one praying alone does not recite the qunut, however.
Given this, it is not disliked for a Hanafi leading others to recite the qunut supplication in Fajr prayer, because those at enmity to us have taken over our lands, which is the greatest of calamities.
As for the reasoning suggested [by the questioner] for reciting the qunut that most of the followers are Shafi`i, it is unsound: the basis is that the follower is the one who follows the one leading prayer, not that the one leading prayer follows the followers.
At the same time, there is nothing wrong with a Hanafi leading others to follow the madhhab of Imam Shafi`i on occasion, seeking to attain unto the blessings (barakat) of having followed a tremendous imam such as Imam Shafi`i (Allah have mercy on him). Another worthy reason is to bring hearts together, as well as to show [those unaware] that it is valid to follow the madhhab of Imam Shafi`i.
However, it befits the Muslim to stick to one madhhab in their affairs, and to avoid leaving it for other madhhabs’ position except when there is a genuine need, such as when some of those praying behind him have doubts about following one of the recognized Sunni imams, for example. With this, one should scrupulously seek to follow the ways of caution in one’s worship.
And Allah alone gives success.