Reciting Tasbeeh-e-Faatimi before Retiring to Bed

One should recite Tasbeeh-e-Faatimi before retiring to bed: i.e. 33 times Subhaanallah, 33 times Alhamdulillah, and 34 times Allahu Akbar.

عن علي رضي الله عنه أن فاطمة رضي الله عنها أتت النبي صلى الله عليه وسلم تشكو إليه ما تلقى في يدها من الرحى وبلغها أنه جاءه رقيق فلم تصادفه فذكرت ذلك لعائشة فلما جاء أخبرته عائشة قال فجاءنا وقد أخذنا مضاجعنا فذهبنا نقوم فقال على مكانكما فجاء فقعد بيني وبينها حتى وجدت برد قدميه على بطني فقال ألا أدلكما على خير مما سألتما إذا أخذتما مضاجعكما أو أويتما إلى فراشكما فسبحا ثلاثا وثلاثين واحمدا ثلاثا وثلاثين وكبرا أربعا وثلاثين فهو خير لكما من خادم. و في رواية: قال علي : فما تركته منذ سمعته من رسول الله صلى الله عليه وسلم قيل له : ولا ليلة صفين ؟ قال : ولا ليلة صفين. (البخاري رقم 5361)

Hadhrat Ali (Radhiallahu Anhu) reports that on one occasion Hadhrat Faatimah (Radhiallahu Anha) went to the house of Rasulullah (Sallallahu Alaihi Wasallam) to complain about the difficulty she was experiencing while using the handmill. The news reached her that Rasulullah (Sallallahu Alaihi Wasallam) had received some slaves (so she had thought that she would request Rasulullah (Sallallahu Alaihi Wasallam) for a slave to assist her in her daily chores). However, (upon reaching the home) she did not find Rasulullah (Sallallahu Alaihi Wasallam) present, hence she informed Hadhrat Aaisha (Radhiallahu Anha) of her reason for coming. When Rasulullah (Sallallahu Alaihi Wasallam) reached home, Hadhrat Aaisha (Radhiallahu Anha) informed him regarding the request of Hadhrat Faatima (Radhiallahu Anha). Subsequently, Rasulullah (Sallallahu Alaihi Wasallam) then came to our home at the time we were retiring to bed. (Upon seeing him) we intended to wake up (out of respect for him), but Rasulullah (Sallallahu Alaihi Wasallam) told us to remain as we were. He then came and sat between us until I could feel the coolness of his feet on my stomach (i.e. due to being seated so close to us in between, his mubaarak feet touched the side of my body). He then said: “Should I not show you something better than what you had requested (i.e. better than me giving you a slave to assist you in your daily chores)? Before retiring to bed, then recite Subhaanallah 33 times, Alhamdulillah 33 times and Allahu Akbar 34 times, for certainly this is better for you (in assisting you in your daily chores) than acquiring a slave. (According to another narration) Hadhrat Ali (Radhiallahu Anhu) further said: “I did not leave out this practice from the time I heard it from Rasulullah (Sallallahu Alaihi Wasallam).” Someone present asked: “Not even on the night of Siffeen (i.e. the night of the battle of Siffeen)?” He replied: “Not even on the night of Siffeen.”