From Surah Nisa:
If ye fear that ye shall not be able to deal justly with the orphans, marry women of your choice, two or three or four; but if ye fear that ye shall not be able to deal justly (with them), then only one, or (a captive) that your right hands possess, that will be more suitable, to prevent you from doing injustice.
Ye are never able to be fair and just as between women, even if it is your ardent desire: But turn not away (from a woman) altogether, so as to leave her (as it were) hanging (in the air). If ye come to a friendly understanding, and practice self- restraint, Allah is Oft-forgiving, Most Merciful.
yup you have to do justice in spending time, loving, caring, providing food/money.. betweet 1 2 or 4..
so yeh?