Anas radiyallahu anhu reports that Rasoolullah sallallahu alaihe wasallam went to Makkah for Umratul Qada. Abdullah ibne Rawahah radiyallahu anhu (throwing his sword over his shoulder and holding the reins of the camel of Sayyidina Rasoolullah sallallahu alaihe wasallam) was walking ahead of him reciting these couplets:
"O non-believers clear his path (and leave today. Do not prohibit Sayyidina Rasoolullah sallallahu alaihe wasallam from entering Makkah as you had done last year) for today we shall smite you. We will take such action against you that we will separate the brain from its body. And will make a friend forget a friend."Umar radiyallahu anhu stopped him and said, O Ibne Rawahah, in the presence of Rasoolullah sallallahu alaihe wasallam and the Haram of Allah you are reciting poetry?Rasoolullah sallallahu alaihe wasallam said, Leave him O Umar, these couplets are more forceful than showering arrows onto them
English reference: Book 36, Hadith 235
Arabic reference: Book 37, Hadith 246