(106) باب الْمُتَشَبِّعِ بِمَا لَمْ يَنَلْ، وَمَا يُنْهَى مِنِ افْتِخَارِ الضَّرَّةِ
Narrated Asma:
Some lady said, "O Allah's Messenger (ﷺ)! My husband has another wife, so it is sinful of me to claim that he has given me what he has not given me (in order to tease her)?" Allah's Messenger (ﷺ) said, The one who pretends that he has been given what he has not been given, is just like the (false) one who wears two garments of falsehood."
Reference: Sahih al-Bukhari 5219
In-book reference: Book 67, Hadith 152
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 62, Hadith 146