Weeping over Imam Hussain (a.s.), a sign of believer [1]

Imam Hussain (a.s.) said:

I am the martyr of tears. No believers remember me without weeping. [2]

references:

[1]. The reference of the title: A chapter on Hussain (A.S), Hussain Eskandari, translator: Mohammad Yaghoobian, p. 26

[2]. Kamil al Ziyarat, chapter 6, p. 108: أنا قتیل العبرة لایذکرنی مؤمن إلّا بکی