What's the supplication that one must say before iftar?

Salam alekom warahmatullahi wa barakatu dear teacher,
I have a question for you related to the supplication at iftar time. I wish to know all the supplications that one must or should say when is breaking the fast and i wish to know which from the supplications is the best to be said .Last year my husband and parents in law teach me to say a short supplication and i appologize if i spell it wrong , please corect me and advise me better " Allahoma ini laka somt wa alla rzqika aftart ".Thank you !

Walaiakaum Assalam Wa Rahmatullahi Wabarakutu

Sister, this is the dua which is commonly being recited for breaking the fast

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Thahabadh-dhama'u wabtallatil-'urooqu, wa thabatal-'ajru 'inshaa'Allaah.

The thirst is gone, the veins are moistened and the reward is confirmed, if Allah wills.

Reference: Abu Dawud