Hadith 10:1378
Abu Bakr narrated to us, he said: Abu Khalid narrated to us, from Hajjaj, from Ibn Abi Najih, from Mujahid, who said: It is that you say, "I am pregnant," while you are not pregnant, or you say, "I am menstruating," while you are not menstruating.
حدثنا أبو بكر قال نا أبو خالد عن حجاج عن بن أبي نجيح عن مجاهد قال أن تقول أنا حامل وليست بحامل أو تقول أنا حائض وليست بحائض