Narrated Anas bin Malik:

A Jewess brought a poisoned (cooked) sheep for the Prophet who ate from it. She was brought to the Prophet and he was asked, "Shall we kill her?" He said, "No." I continued to see the effect of the poison on the palate of the mouth of Allah's Apostle .

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ عَبْدِ الْوَهَّابِ، حَدَّثَنَا خَالِدُ بْنُ الْحَارِثِ، حَدَّثَنَا شُعْبَةُ، عَنْ هِشَامِ بْنِ زَيْدٍ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ أَنَّ يَهُودِيَّةً، أَتَتِ النَّبِيَّ ﷺ بِشَاةٍ مَسْمُومَةٍ، فَأَكَلَ مِنْهَا فَجِيءَ بِهَا فَقِيلَ أَلاَ نَقْتُلُهَا. قَالَ " لاَ ". فَمَا زِلْتُ أَعْرِفُهَا فِي لَهَوَاتِ رَسُولِ اللَّهِ ﷺ.