‘The strong believer is better and more beloved to Allah, than the weak believer and there is goodness in both. Strive for that which will benefit you ,seek help from Allah and do not despair. If a mishap should happen to befall you then do not say ‘If only I had acted…such and such would have happened’. Rather, say:
قَدَّرَ اللهُ وَما شـاءَ فَعَـل .
Qaddaral-lah, wama shaa faAAal.
‘Allah has decreed and what He wills, He does.’
…for verily ‘If’ lets in the work of the devil.’
Indeed Allah تعالى rebukes due to negligence and slackness, but take to determination and caution, and if a matter should overtake you then say:
حَسْـبِيَ اللهُ وَنِـعْمَ الوَكيـل .
‘Allah is sufficient for me, and how fine a trustee (He is.)’