Ibn Taymiyyah: Righteousness is to fulfill the Rights of Allah and the Rights of His servants

Ibn Taymiyyah رحمه الله writes in his Kitab Al-Iman [English translation and Arabic text below]:
The following words – “righteous,” “witness,” and “truthful,” – may be cited separately to refer to the Prophets. Allah the Exalted says about Al-Khalil (the Prophet Abraham):

وَآتَيْنَاهُ أَجْرَهُ فِي الدُّنْيَا وَإِنَّهُ فِي الْآخِرَةِ لَمِنَ الصَّالِحِينَ

We gave him his reward in the world and, indeed, in the Hereafter he will be one of the righteous.
[Surah Al-Ankabut 29:27]

Ibn Taymiyyah: Good Character is the Creed of the Salaf

Sheikh ul-Islam Ibn Taymiyyah رحمه الله said in Al-Aqidah Al-Wasitiyyah:
By these principles [Ahl us-Sunnah wal Jama’ah] encourage well-known righteous deeds and forbid evil deeds in accordance with what is ordained by the Sharia. And they believe in practicing Hajj (pilgrimage) and Jihad (struggle for the cause of Allah), in attending Friday communal prayers and the holidays with the leaders, be they pious or wicked, and in observing the community prayers. They believe in advising the Ummah (nation of Muslims), and they firmly believe in the Prophet’s صلى الله عليه وسلم saying: