Hadith 280
Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that none of you should perform prayer at the time of sunrise or sunset, because the Noble Prophet (peace and blessings of Allah be upon him) used to prohibit this.
Hadith 281
Sayyiduna Ali (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) forbade performing (optional) prayer after the Asr prayer, except if the sun is high (then it is permissible to pray).