"The fatwa (Fatawa-i-Rizvia) goes on reiterating these arguments, the citations, the assertions—paragraph after paragraph, page after page. ... In Hindustan, it continues, cow slaughter is an act that greatly glorifies Islam. By our fatwas we have proven that here the sacrifice of cows is proper and to abandon it out of regard for Hindus is improper. The fatwa strongly condemns those who say that it should be given up—they are guilty of gunah kabira, it declares. It goes on to quote the fatwas issued by Abdul Wahab, by his ustad, Abdul Hai, and by other ulema of Firangi Mahal—pointing out that these are fatwas which have been included in the compilations of Abdul Hai in which he himself declares that to stop cow slaughter out of regard for Hindus is improper, that to continue it is proper. Cow slaughter is the glory of Islam, the fatwa declares, and the unity which is being observed with Hindus is haram, prohibited, it is qatai haram, wholly prohibited. Cow slaughter is the religious right of a Mussalman, it declares, and a right at that which particularly glorifies Islam. To stop it because of polytheists is to glorify the polytheists, while the sacrificing of cows is the glorification of Islam. This theme is reiterated repeatedly. And the Quran says you should make Allah and the Prophet happy—they have a better right that you appease them than the polytheists have ... unity with the Hindus is haram and to stop cow slaughter because of it is haram..., Even this precis of the fatwa is sufficient to show the steps by which something for which there was at best a permission is transformed by the ulema into a religious duty, the steps by which doing the one thing that hurts another the most becomes a matter of principle, a religious right, an Allah- and Prophet-ordained duty. To give it up would be to give up that which is a long-standing practice in Islam. If we yield on this, they will force on us anything. It would be to strengthen the false religion of the polytheists. It would be to abandon religious work under duress. It would be to do that which we are prohibited from doing—namely to honour kafirs. It will be to degrade Islam. On the other hand, to kill cows is to do the thing which particularly glorifies Islam."
January 1, 1970
https://en.wikiquote.org/wiki/Cattle_slaughter_in_India