السلام عليك يا استاذ، is it permissible for me to learn/review arabic vocabulary whilst in the bathroom? Some of which may be words from the Quran and some which won't be (it would be individual words on digital flash cards, not phrases so no ayat will be on them) جزاك الله خيرا
It is prohibited to sit in the toilet beyond the absolutely needed duration to relieve oneself.