A Jewess came to Allah's Messenger (may Allah's blessings and peace be upon him) with poisoned mutton and he took of what had been brought to him. (When the effect of his poison were felt by him) he called for her and asked her about that, whereupon she said: I had determined to kill you. Thereupon he said: Allah will never give you the power to do it. He (the narrator) said that they (the Companions of the Holy Prophet) said: Should we not kill her? Thereupon he said: No. He said: I felt (the effects of this poison) on the uvula of Allah's Messenger. (Sahih Muslim)

It has been narrated on the authority of Hadrat Anas Ibn Malik (may Allah be pleased with him) that eighty persons from the inhabitants of Makka swooped down upon Allah's Messenger (may Allah's blessings and peace be upon him) from the mountain of Tan'im. They were armed and wanted to attack the Holy Prophet (may Allah's blessings and peace be upon him) and his Companions unawares. He (the Holy Prophet) captured them but spared their lives. So, Allah (The Glorified and the Exalted) revealed the verse:

"And It is He Who restrained your hands from them and their hands from you in the valley of Makkah after He had given you a victory over them." (48:24)
(Sahih Muslim)