Haysûr is the same boy who has been mentioned above. You have also read that the Quran has mentioned his parents as believers. The person whom Allah refers to as a believer cannot be any ordinary believer who does not have strong îmân. It is obvious that such a person must be very strong in his îmân. We can therefore deduce that Haysûr’s mother must have been very pious as well.
Lesson: Look! Having strong îmân is such a great thing that Allah praised such persons. O women! Strengthen your îmân. This can be only done by following the orders of Allah and abstaining from sins.