Celebrating birthdays is an innovation in the religion of Allaah, and it is not permissible to do this. It is not permissible to eat the food that has been prepared for this occasion. Their claim that the food for the birthday celebration is for the guests does not make it excusable to eat it. Hospitality is subject to its own rulings, and matters are judged according to the intentions behind them. It is very clear that the food is being prepared for this innovated occasion, and eating this food is one of the things that helps them to persist in doing this. It is a kind of co-operation in sin and transgression. Allaah says (interpretation of the meaning):
“Help you one another in Al Birr and At Taqwa (virtue, righteousness and piety); but do not help one another in sin and transgression” [al-Maa’idah 5:2]
Besides being bid’ah and having no basis in sharee’ah, these birthday celebrations also involve imitation of the Jews and Christians in their birthday celebrations. The Prophet (peace and blessings of Allaah be upon him) said, warning us against following their ways and traditions: “You would follow the ways of those who came before you step by step, to such an extent that if they were to enter a lizard’s hole, you would enter it too.” They said, “O Messenger of Allaah, (do you mean) the Jews and Christians?” He said, “Who else?” (Reported by al-Bukhaari and Muslim). The Prophet (peace and blessings of Allaah be upon him) also said: “Whoever imitates a people is one of them.