It is narrated from Mujahid (may Allah have mercy on him) that Sayyiduna Ibn Umar (may Allah be pleased with them both) did not seek permission to enter the shops in the market.
Hadith Referenceالادب المفرد / كتاب الاستئذان / 1098
It is narrated from Ata (may Allah have mercy on him) that Sayyiduna Ibn Umar (may Allah be pleased with them both) used to seek permission before entering the canopies of cloth sellers.
Hadith Referenceالادب المفرد / كتاب الاستئذان / 1099
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه البيهقي فى الشعب : 8464»