You might view this as a small thing, and you make your choice without much deliberation, especially if you are in a hurry.
وَعَلَيْهِ ،‏ يَلْزَمُ أَنْ نَمْتَلِكَ تَصْمِيمًا شَدِيدًا عَلَى فِعْلِ مَا نُقَرِّرُهُ .‏