Is it permissible to combine the Dhuhr and Asr prayers or the Maghrib and Isha prayers when there is no suitable place to pray or no knowledge of the Qibla, causing difficulty while shopping or due to limited store hours?

It is not permissible for a resident to combine two prayers without a legitimate Shari excuse, such as travel, illness, or rain. Shopping, studying at university, not finding a place to pray, or not knowing the Qibla are not considered valid excuses for combining prayers. The entire earth is a mosque, and one must strive to ascertain the direction of the Qibla for prayer.