In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
Polygamy is simply mubaah (permissible) with the condition that the husband is able to maintain fairness and equity between his wives.
Allah Ta’ala says:
If you fear that you will not be able to be just to the orphans, then marry women of your choice two or three or four. If you fear that you will be able to do justice then just one or
that which your right hand possesses. In this way it is unlikely that you will be unjust. (Surah Nisaa 4:3).[1]
Practising on something that is mubah (permissible) is not a sign of strong Imaan. However, being sensitive to the conditions of a polygamous marriage being justice and fairness and facilitating the conditions is a sign of strong Imaan.
And Allah Ta’āla Knows Best
Mufti Saeed Ahmed Golaub
Islamic Solutions
Jamaica
References
[1]{ وَإِنْ خِفْتُمْ أَلَّا تُقْسِطُوا فِي الْيَتَامَى فَانْكِحُوا مَا طَابَ لَكُمْ مِنَ النِّسَاءِ مَثْنَى وَثُلَاثَ وَرُبَاعَ فَإِنْ خِفْتُمْ أَلَّا تَعْدِلُوا فَوَاحِدَةً أَوْ مَا مَلَكَتْ أَيْمَانُكُمْ ذَلِكَ أَدْنَى أَلَّا تَعُولُوا} [النساء: 3]