"I heard the Messenger of Allah say; 'If you cannot find an Izar then wear pants, and if you cannot find sandals then wear khuffs, but cut them so that they come lower than the ankles.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِذَا لَمْ يَجِدْ إِزَارًا فَلْيَلْبَسِ السَّرَاوِيلَ وَإِذَا لَمْ يَجِدِ النَّعْلَيْنِ فَلْيَلْبَسِ الْخُفَّيْنِ وَلْيَقْطَعْهُمَا أَسْفَلَ مِنَ الْكَعْبَيْنِ