The divergence of Qur'anic readings in some verses has led to divisions in the commentators, translators and jurisprudents` understanding and interpretation. Regarding the reasons for unlawfulness of kissing non-mahrams and the commentators and scholars` views and relying the verse " ow Laamastum al-Nisa`", this article studies the differences between the readings of the above verse and its effect on the opinions of the commentators and jurisprudents. Explaining the difference of readings of the two words of laamastum and lamastum and surveying the why of the readings, it has been shown that the varieties in jurisprudent rules lie in the readings of the verse.  The authors of this article have analyzed the translations of verse 43 in an analytical-comparative manner and have shown the weaknesses and slips of some of the translations and practical jurisprudent rules in the phrase "Laamstam al-Nasa".