Sheikh Muhammad Muhammad Sâlim `Abd al-Wadûd
The Prophet (peace be upon him) said: “On the Day of Resurrection, Allah will not look at whoever dragged his garment out of pride.” Abû Bakr said to him: “O Messenger of Allah, my waistcloth slips down if I do not pay attention to it.” He said: “You are not one of those who do it out of pride.” [Related in full in Sahîh al-Bukhârî (5784) and partially in Sahîh Muslim (2085)]
I hold the view that the rulings against wearing clothes below the ankles (isbâl) does not apply to pants. The prohibition applies to articles of clothing like robes (thawb) and waistcloths (izâr) that go around both feet together, since it is these types of clothing that, by their nature, drag upon the ground.
The Prophet (peace be upon him) said: “Whoever drags his garment (jarra thawbahu) out of pride…”
Pants, by their nature, are not dragged upon the ground in this matter. Therefore, the very idea of isbâl is not applicable to pants.
Those who apply the ruling to the pants consider the generality of the term “garment” (thawb). In one narration, one narrator (Shu`bah) asked his sheikh among the narrators: “Did he mention the waistcloth?” The sheikh replied: “He did not specify either a waistcloth or a shirt.” [Sahîh al-Bukhârî (5791)]
The issue at hand is whether the word garment (thawb) is to be understood as being specified by the verb “drag” (jarra) that is connected with it. The verb jarra means “to tow, to pull or drag along.” Therefore, I hold that the ruling applies to the action of wearing garments that are dragged along behind.
Those who disagree and apply the ruling of isbâl to pants do not specify the noun “garment” by the context of the verb.
And Allah knows best.
Source: Islam Today