The Prophet ﷺ said:

((دِينارٌ أنْفَقْتَهُ في سَبيلِ اللهِ، ودِينارٌ أنْفَقْتَهُ في رَقَبَةٍ، ودِينارٌ تَصَدَّقْتَ به علَى مِسْكِينٍ، ودِينارٌ أنْفَقْتَهُ علَى أهْلِكَ؛ أعْظَمُها أجْرًا الذي أنْفَقْتَهُ علَى أهْلِكَ)). "A dinar you spend in the way of Allāh, a dinar you spend to free a slave, a dinar you give in charity to a poor person, and a dinar you spend on your family—of these, the one with the greatest reward is that which you spend on your family." [Muslim 995] Polygyny also serves to avert many evils. For example: -> The Prophet ﷺ foretold that women would outnumber men, which is evident in our time. If each man were limited to only one wife, many women would remain unmarried. Sharing a man through polygyny is better than leaving some women without spouses. (First wives, fear Allāh!) -> The Prophet ﷺ warned that trials and tribulations would intensify, with the Fitnah of women being among the most severe challenges left for men. Today, this Fitnah has reached an unprecedented level in the Ummah, making the wisdom of polygyny even more apparent. [https://t.me/womensbenefits/26] [https://t.me/womensbenefits/360] [https://t.me/womensbenefits/244] ▪️ POINT 6 When Ghaylān ibn Salamah, who had ten wives, embraced Islam, the Prophet ﷺ instructed him to keep four and divorce the rest. [Abu Dawūd] This shows that having more wives is encouraged; as the Prophet ﷺ directed him to the maximum permissible number. ▪️ POINT 7 If you ask those who consider polygyny merely mubāḥ about the ruling on marrying for the first time, they will most likely respond that it is Sunnah, maybe even citing the statement of Ibn Al-Qayyim, who said: "And if it were only for the joy of the Prophet ﷺ on the day of showing pride in his nation; or if it were only for the fact that one’s deeds do not cease upon death; or if it were only for the fact that from one’s loins emerge those who testify to the Oneness of Allāh and the prophethood of His Messenger; or if it were only for lowering the gaze and guarding the private parts from turning to what Allāh has forbidden; or if it were only for the protection of a woman, whom Allāh preserves through him, and for which he is rewarded for satisfying her desires and fulfilling her needs—then this alone is a pleasure in itself, and the records of his good deeds increase. And if it were only for the reward obtained from providing for his wife, clothing her, housing her, and giving her sustenance; or if it were only for increasing Islam and its followers and frustrating the enemies of Islam; or if it were only for the acts of worship that result, which are not obtained by one who neglects voluntary duties; or if it were only for regulating his sexual desire, which otherwise diverts him from attaching his heart to what is most beneficial for him in his religion and worldly life. For attachment of the heart to desire, or struggling against it, prevents it from focusing on what is truly beneficial. For the heart, when directed to one thing, is diverted from another. And if it were only for approaching daughters, so that if he is patient with them and treats them well, they serve as a shield for him from the Fire; or if it were only that when two rivers of semen are discharged without reaching unlawful consummation, Allāh admits him to Paradise because of them; or if it were only for drawing the help of Allāh, for in the hadith raised to Allah there are three whose right to His assistance is established: the man who marries seeking chastity, the debtor wishing to fulfill his obligation, and the mujahid (one striving in Allah’s cause)." [End of Quote from Bada’i‘ Al-Fawa’id] My question is: The evidences promoting marriage, along with the virtues mentioned here, are general. So why restrict them to monogamy at the exclusion of polygyny?