諸經要集 3.30

3.30

又涅槃經云。若於佛法僧供養一香燈。乃至獻一花。則生不動國。善守佛僧物。塗掃佛僧地。造像塔如拇指。當生歡喜心。亦生不動國。此即淨土常嚴不為三災所動也。

Furthermore, the Nirvāṇa-sūtra states: 'If one offers a single incense lamp or even presents a single flower to the Buddha, Dharma, and Saṅgha, one will be reborn in the Land of the Immovable (Akṣobhya). If one well guards the property of the Buddha and the Saṅgha, sweeps and plasters the grounds of the Buddha and the Saṅgha, and makes images and stupas the size of a thumb, giving rise to a joyful mind, one will likewise be reborn in the Land of the Immovable.' This refers to a pure land being perpetually adorned and not shaken by the three disasters.