Musannaf Ibn Abi Shaybah 38603 — the first to do a thing, and who did

Sayyiduna Ibn Mas'ud (may Allah be pleased with him) said: Surah Bani Isra'il, Surah al-Kahf, Surah Maryam, Surah Ta Ha and Surah al-Anbiya are among the earliest surahs revealed in Makkah, and these were the surahs I learned first of all.