Sayyiduna Abu Qatadah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) used to recite in the first two rak'ahs of Zuhr and Asr, and sometimes he would let us hear a verse. He would lengthen the first rak'ah and shorten the second, and he would recite in the first two rak'ahs of Maghrib.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3863