It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever leaves the first row for fear of causing harm to someone, Allah Almighty will double for him the reward of the first row."
This hadith is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) only with this chain, and al-Walid bin al-Fadl (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الألف / 537
Hadith Gradingمحدثین:إسناده ضعيف لضعف نوح بن أبي مريم
Hadith Takhrij«قال الهيثمي: فيه نوح بن أبي مريم وهو ضعيف «مجمع الزوائد ومنبع الفوائد، ج 2، ص 95»»