谁说的？(Shúi shuō de ?)Who told you so? That’s far from the truth.

Explanation

“谁说的”一般在不同意对方的观点时用，放在句首，多用不可思议的语气。
“谁说的” is generally used to express a sense of disbelief or disagreement with others. It is usually used at the beginning of a sentence.
Words:

春天chūntiān:spring;
沙尘暴shāchén bào:sandstorms.

Sentences

1.Jiǎ: Tīngshuōnǐ jīnnián jiéhūn, gōngxǐ a!
甲：听说你今年结婚，恭喜啊！
A: I heard that you are going to get married this year. Congratulations!

Yǐ: á,shúi shuō de? Wǒ háiméiyǒu nǚpéngyou!
乙：啊，谁说的？我还没有女朋友！
A: What, who said that? I still don’t have a girlfriend!

2.Jiǎ:Nǐ zhīdaoma, Běijīng de chūntiān hěnshūfu!
甲：你知道吗，北京的春天很舒服！
A: You know, spring in Beijing is very comfortable.

Yǐ: Shúishuōde? Yǒu shāchénbào.
乙：谁说的？有沙尘暴！
B: That’s far from the truth. There are sandstorms!