..." , According to several traditions narrated from the...
..." , According to several traditions narrated from the holy Imams of Ahlul-Bayt (as), and also according to many commentary books recorded by the scholars of the Sunnis, this phrase of the verse refers to temporary marriage where the above-mentioned holy verse says: "...Then as to those of Whom you seek content (by marriage), give them their dowries as a duty. And there is no blame on you in whatever you mutually agree after the duty.
"And whoever among you is not able to financially afford to marry free believing women, then (let him marry) of those (slaves or captives) whom your right hands possess from among your believing maidens; and Allah better knows your faith; you are (sprung) one from the other, so marry them with the permission of their masters, and give them their dowries in fairness, they being chaste, not committing lewdness, nor taking paramours.
And if when they are married they commit lewdness, their punishment is half that for free women. This (kind of marriage) is for those among you who fear falling into evil. But to have patience would be better for you, and Allah is Forgiving, Merciful." Following the statements about marriage, this verse expresses the conditions of marrying she slaves whose dowries and expenses are usually lighter and easier.
At first it says: "And whoever among you is not able to financially afford to marry free believing women, then (let him marry) of those (slaves or captives) whom your right hands possess from among your believing maidens....." Then it adds that for recognizing their Faith, you are commissioned to hear their apparent expressions, and as for their innate thoughts and hidden secrets, it is so that Allah knows well of your faith. "...and Allah better knows your faith....