فَأَنْتَ لَهُ تَصَدَّىٰ
You pay full attention,
You (O Messenger) attend to him (so that he may accept Islam and reform),
To this one you were very attentive,
to him didst thou give thy whole attention,
Unto him thou attendest.
So you are after him!
To him do you attend.
So you are for him paying attention/being concerned with .
to whom you were attending;
And no blame is on thee, if he purify himself not.
to a rich man,
Unto him thou payest regard.
To him do you address yourself.
To him you attend;
To him dost thou attend;