Wallathani ya'tiyaniha minkum faathoohuma fa-in taba waaslaha faaAAridoo AAanhuma inna Allaha kana (surah Nisa: 16)

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

(4:16) Punish both of those among you who are guilty of this sin, then if they repent and mend their ways, leave them alone. For Allah is always ready to accept repentance. He is All-Compassionate. *26

Wallazaani yaatiyaanihaa minkum fa aazoohumaa fa in taabaa wa aslahaa fa a`ridoo `anhumaaa; innal laaha kaana Tawwaabar Raheema

*26). In these two verses (15-16) the first, preliminary directives for the punishment for unlawful sexual intercourse are stated. The first verse deals with women. The punishment laid down was to confine them until further directives were revealed. The second verse (i.e. 16) relates to both sexes. The injunction lays down that they should be punished - that is, they should be beaten and publicly reproached. Later, another injunction was revealed (see Surah al-Nur 24: 2) which laid down that both the male and female should be given a hundred lashes. These injunctions are necessarily of a preliminary nature since the people of Arabia were neither used to obeying the orders of any established government, the verdicts of any courts of law nor to following any legal code; it would therefore have been unwise to try to force acceptance of a penal code upon them so soon after the establishment of the Islamic state. In due course, the punishments for unlawful sexual intercourse, for slanderous accusations of unchastity against women, and for theft were laid down in their definitive form and served as the basis of that detailed penal code which was enforced by the Prophet (peace be on him) and the Rightly-Guided Caliphs.
The apparent difference between the contents of the two verses led al-Suddi to the misconceived belief that the first verse lays down the punishment for married women, and the second that for unmarried men and women. This is a tenuous explanation unsupported by any serious evidence and argument. Even less convincing is the opinion expressed by Abu Muslim al-Isfahani that the first verse relates to lesbian relations between females, and the second to homosexual relations between males. It is strange that al-Isfahani ignored the basic fact that the Qur'an seeks merely to chart a broad code of law and morality and hence deals only with fundamental questions. It is inconsistent with the majestic style of the Qur'an to discuss secondary details which have been left to people to decide through the exercise of their legal judgement. It is for this reason that when the problem of fixing a punishment for sodomy came up for consideration after the time of the Prophet (peace be on him), none of the Companions thought that the above-mentioned verse contained any relevant injunction.