If he adds, “the Most Compassionate, the Most Merciful,” this is also good, because it completes the basmalah. The Noble Quran contains: “In the name of Allah, the Most Compassionate, the Most Merciful.” But Shaykh al-Islam Ibn Taymiyyah said: As for adding “the Most Compassionate, the Most Merciful” when slaughtering, some scholars have stated that it is inappropriate, because one is about to do something which, had Allah not made it lawful for him, he would not have been permitted to do—namely, slaughtering an animal. Thus, mentioning these two Names at the time of slaughter is not fitting.
As for what some brothers have said—that it is disliked to say, “the Most Compassionate, the Most Merciful”—this is astonishing. How can someone dare to issue a ruling about something of which he has no knowledge?
Whoever says, “the Most Compassionate, the Most Merciful,” has added nothing but good. For it is from Allah’s mercy that He has made this food easy for you to obtain. Thus, it does not conflict with the situation, nor does it conflict with the Sacred Law. No prohibition has been reported, and it is not permissible for anyone to say of something that it is disliked except on the basis of evidence, because disapproval is a ruling of the Sacred Law that requires proof, or a sound rationale supported by the texts.
If a person cannot say the basmalah in Arabic but can say it in his own language, then he should mention Allah’s name in his own language. If he is mute and unable to speak at all, then he should do so by gesture. If a group of people are present and they all begin eating together, is one person’s mention of Allah’s name sufficient, or must each person mention it himself?
The answer is: if they arrive one after another, such that a person comes and did not hear the first person mention Allah’s name, then he must mention it himself, as occurred in the hadith concerning the young girl. But if they all begin together, then it appears that one person’s mention of Allah’s name suffices, especially if he intends it for himself and those with him. Nevertheless, my preferred view is that each person should mention Allah’s name himself, even if they all begin together.