Sahih Muslim Book 4, Hadith Number 1187.

Chapter : It is forbidden to cry out for finding out the lost thing in the mosque.

‘Imran b. Husain reported: The Messenger of Allah (may peace be upon him) said the afternoon prayer and gave the salutation at the end of three rak’ahs and then went into his house. A man called al-Khirbaq, who bad long aims, got up and went to him, and addressed him as Messenger of Allah and mentioned to him what he had done. He came out angrily trailing his mantle, and when he came to the people he said: Is this man telling the truth? They said: Yes. He then said one rak’ah and then gave salutation and then performed two prostrations and then gave salutation.