The speech of Prophet Muhammad (pbuh) refers to his sayings. For example, he said:
"Actions are judged by their intentions; everyone will be rewarded according to his/her intention. So whoever migrates for the sake of Allah and His Prophet then his migration will be noted as a migration for the sake of Allah and His Prophet. Conversely, one who migrates only to obtain something worldly or to marry a woman, then his migration will be worth what he had inteded.² [Bukhari]. The Prophet (pbuh) also said: ³Whoever believes in Allah and the Last Day, should say something good or keep quiet.The above two accounts clearly show that the Prophet (pbuh) spoke these words. Consequently, these are known as his speech.