It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that he said: "It is of the Sunnah that when a man sits down, he takes off his sandals and places them at his side."
"No one narrated this hadith from Ziyad bin Sa'd except Abdullah bin Harun al-Zabibi (may Allah have mercy on him), and Safwan bin Isa (may Allah have mercy on him) is alone in transmitting it from him."
Hadith Referenceالمعجم الأوسط / باب الميم / 7228
Hadith Takhrij«أخرجه أبو داود فى «سننه» برقم: 4138، والطبراني فى «الكبير» برقم: 12917»