Wedding feast

Dear scholars, As-Salamu `alaykum. What is the concept of walimah (wedding feast) in Islam? Shouldn’t it be held after the consummation of marriage? Is it obligatory for the groom to pay for it? Can the bride also share the expenses? Jazakum Allah khayran.

Salam Waleikum...How a muslim wedding should be? This will help me as i am the next to get married in my family. I dont want to involve any kind of rituals that are followed in marriage which are unislamic.can pictures be taken in the marriage as i believe pictures which doesn't lead to Shirk, indecency are allowed and which are in the limit.Can we attend a Islamic marriage where all the rituals which are performed in that region are followed.Kindly correct me and reply me if any wrong in my understanding.