Translation:

93. The ground (of complaint) is against such as claim exemption while they are rich. They prefer to stay with the (women) who remain behind: Allah hath sealed their hearts; so they know not (what they miss).

Notes (Tafseer)

1345. Cf. ix. 87, where similar phrases are used for a similar shirking of duty by towns-folk, while here we are considering the desert folk. It is not only a duty, but a precious privilege, to serve a great Cause by personal self-sacrifice. Those who shirk such an opportunity know not what they miss.