Ya ayyuha allatheena amanoo la taqooloo raAAina waqooloo onthurna wasmaAAoo walilkafireena AAathabun (surah Baqarah: 104)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(2:104) O Believers, *107 do not say. "Ra 'ina" but say, "Unzurna " and listen *108 a to what is said; for the disbelievers deserve a painful punishment.

Yaaa ayyuhal lazeena aamanoo laa taqooloo raa`inaa wa qoolun zurnaa wasma`oo; wa lilkaafireena `azaabun aleem

*107). This and the following verses inform the followers of the Prophet (peace be on him) of the machinations of the Jews against Islam and the Muslims, and dispel any doubts and misgivings they tried to create in their minds. Special attention is paid to the points raised during controversial discussions between Muslims and Jews. It is useful to note here that when the Prophet (peace be on him) arrived in Madina and the message of Islam began to spread the Jews tried to engage Muslims in controversial religious discussions. They raised all kinds of involved and suspicion-provoking problems so as to contaminate the simple and pure-hearted Muslims with the spiritual diseases from which they themselves suffered. Not only that, they resorted to sly and deceptive talk in the presence of the Prophet.
*108). When the Jews visited the Prophet they tried to vent their spite by using ambiguous expressions in their greetings and conversation. They, used words which had double meanings, one innocent and the other offensive. After using quite proper expressions they would then whisper some malicious words. Ostensibly they maintained the decorum of respect and courtesy while sparing no underhand means to insult the Prophet. Later we shall encounter several examples of this kind of behaviour. The particular expression referred to here, and which the Muslims were asked to avoid using since it lent itself to abuse, was employed by the Jews when in conversation with the Prophet, whenever they wanted to request a short pause in which to finish whatever they wanted to say. They, used the expression ra'ina, which meant 'kindly indulge us' or ' kindly lend ear to us'.
It was possible, however, for the expression to be used with quite a different shade of meaning. In Hebrew, for instance, there is a word similar to it which means: 'Listen, may you become deaf.' In the same language it also means arrogant, ignorant and fool. In actual conversation it was also used on occasions when one wanted to say: 'If you listen to me, 1 will listen to you.' When it was pronounced with a slight twist of the tongue it turned into ra'ina, meaning 'our shepherd'.
It is because of the possibility of the word being used in these different senses that Muslims were asked to avoid it and to use instead the straightforward expression unzurna, meaning 'kindly favour us with your attention' or 'kindly grant us a while to follow (what you are saying)'. This advice was followed by the admonition to listen attentively to what the Prophet said, for the Jews used to ask for the same thing to be repeated merely because they did not pay proper attention to what the Prophet said but instead were engrossed in their own thoughts. If the Muslims were to heed what the Prophet said, they would scarcely need to make such requests.