And Ata bin Abi Rabah said that a sick person will combine both Isha and Maghrib together.

Narrated Rafi bin Khadij: We used to offer the Maghrib prayer with the Prophet and after finishing the prayer one of us may go away and could still see as Par as the spots where one's arrow might reach when shot by a bow.

Narrated Jabir bin `Abdullah: The Prophet used to pray the Zuhr at midday, and the `Asr at a time when the sun was still bright, the Maghrib after sunset (at its stated time) and the `Isha at a variable time. Whenever he saw the people assembled (for `Isha' prayer) he would pray earlier and if the people delayed, he would delay the prayer. And they or the Prophet used to offer the Fajr Prayers when it still dark.

Narrated Salama: We used to pray the Maghrib prayer with the Prophet when the sun disappeared from the horizon.

Narrated Ibn `Abbas: The Prophet prayed seven rak`at together and eight rak`at together.

Narrated `Abdullah Al-Muzani: The Prophet said, "Do not be influenced by bedouins regarding the name of your Maghrib prayer which is called `Isha' by them."

Abu Huraira (may Allah be pleased with him) narrated from the Prophet (peace and blessings of Allah be upon him) that the night (‘Isha) and dawn (Fajr) prayers are heaviest upon the hypocrites among all the prayers, and the Prophet (peace and blessings of Allah be upon him) said: If only they knew what reward there is in the night (‘Isha) and dawn (Fajr) prayers. Abu ‘Abdullah (Imam Bukhari, may Allah have mercy on him) says that it is better to say“‘Isha,”because the command of Allah is «ومن بعد صلاة العشاء‏» (in the Qur’an, it is named ‘Isha). Abu Musa al-Ash‘ari (may Allah be pleased with him) narrated that we used to take turns to pray the ‘Isha prayer in the mosque of the Prophet (peace and blessings of Allah be upon him). Once, he prayed it late at night. And Ibn ‘Abbas (may Allah be pleased with them both) and ‘A’isha (may Allah be pleased with her) reported that the Prophet (peace and blessings of Allah be upon him) prayed the ‘Isha prayer late. Some narrated from ‘A’isha (may Allah be pleased with her) that the Prophet (peace and blessings of Allah be upon him) prayed «عتمه» late. Jabir (may Allah be pleased with him) said that the Prophet (peace and blessings of Allah be upon him) used to pray“‘Isha.”Abu Barzah al-Aslami (may Allah be pleased with him) said that the Prophet (peace and blessings of Allah be upon him) would delay the ‘Isha prayer. Anas (may Allah be pleased with him) said that the Prophet (peace and blessings of Allah be upon him) used to pray the last ‘Isha late. Ibn ‘Umar, Abu Ayyub, and Ibn ‘Abbas (may Allah be pleased with them) said that the Prophet (peace and blessings of Allah be upon him) prayed Maghrib and ‘Isha.

Narrated `Abdullah: "One night Allah's Apostle led us in the `Isha' prayer and that is the one called Al-`Atma [??] by the people. After the completion of the prayer, he faced us and said, "Do you know the importance of this night? Nobody present on the surface of the earth tonight will be living after one hundred years from this night." (See Hadith No. 575).

Narrated Muhammad bin `Amr: We asked Jabir bin `Abdullah about the prayers of the Prophet . He said, "He used to pray Zuhr prayer at midday, the `Asr when the sun was still hot, and the Maghrib after sunset (at its stated time). The `Isha was offered early if the people gathered, and used to be delayed if their number was less; and the morning prayer was offered when it was still dark. "

Narrated `Aisha: Allah's Apostle once delayed the `Isha' prayer and that was during the days when Islam still had not spread. The Prophet did not come out till `Umar informed him that the women and children had slept. Then he came out and said to the people of the mosque: "None amongst the dwellers of the earth has been waiting for it (`Isha prayer) except you."