Musannaf Ibn Abi Shaybah

Hazrat Muhammad bin Abdullah bin Abu Maryam says that I was in the state of Ihram when I had pain in my nail, so I wanted to cut it. Then I asked Hazrat Saeed bin Jubair, and he asked, "Did you have pain?" I said, "Yes." So he said, "Nephew, cut it off. Allah the Exalted has said: { یُرِیْدُ اللّٰہُ بِکُمُ الْیُسْرَ وَ لَا یُرِیْدُ بِکُمُ الْعُسْرَ }."