مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3434
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn ‘Abbas (رضي الله عنه) said: The Messenger of Allah (ﷺ) cursed effeminate men and women who imitate men.
Musnad Ahmad 3458Its isnad is saheeh,, al-Bukhari (6834)]